I think it has to do with progressing the story, either talking with Tenzin's wife, the Police chief and making progress with Korra. I think it's the second one that you should try and... then you should unlock Korra 'rubbing'. (Naked version is unlocked by reaching Spin level 7+ and training with korra with the air element scroll that you buy in the alley.)So I've heard there's an Amon's mask. And that you CAN drop her resistance to 88.
However, neither of those options are obvious.
I searched and found no answer. Mind helpin a brother out?
EDIT: Nevermind, I randomly went to Shady.